Exploratory analyses. Covariate-adjusted ORs for unexplained death in infancy, by ethnic group relative to White British. Live singleton births at 22+weeks, England and Wales 2006–2012
| Ethnic group | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) |
| With individual adjustment for these factors: | ||||||
| Individual models | Parent marital/ registration status | Mother COB | Mother age | Gestation | Sex | Deprivation |
| White British | 1 | 1 | 1 | 1 | 1 | 1 |
| White Non-British | 0.63 (0.49 to 0.81) | 0.88 (0.66 to 1.16) | 0.57 (0.44 to 0.73) | 0.51 (0.40 to 0.66) | 0.50 (0.39 to 0.64) | 0.48 (0.37 to 0.61) |
| Pakistani | 0.97 (0.68 to 1.38) | 0.74 (0.52 to 1.05) | 0.51 (0.36 to 0.71) | 0.48 (0.34 to 0.68) | 0.49 (0.35 to 0.69) | 0.35 (0.25 to 0.49) |
| Indian | 0.78 (0.49 to 1.23) | 0.60 (0.38 to 0.94) | 0.46 (0.29 to 0.73) | 0.38 (0.24 to 0.60) | 0.38 (0.24 to 0.60) | 0.35 (0.22 to 0.56) |
| Bangladeshi | 0.83 (0.44 to 1.55) | 0.74 (0.39 to 1.39) | 0.43 (0.23 to 0.80) | 0.42 (0.22 to 0.78) | 0.42 (0.23 to 0.79) | 0.29 (0.16 to 0.55) |
| Black African | 0.64 (0.46 to 0.89) | 1.30 (0.90 to 1.88) | 0.74 (0.54 to 1.03) | 0.62 (0.45 to 0.87) | 0.64 (0.46 to 0.89) | 0.47 (0.34 to 0.65) |
| Mixed Black-African-White | 1.36 (0.84 to 2.19) | 2.04 (1.26 to 3.30) | 1.57 (0.97 to 2.53) | 1.55 (0.96 to 2.50) | 1.55 (0.96 to 2.51) | 1.31 (0.81 to 2.12) |
| Black Caribbean | 1.14 (0.79 to 1.63) | 2.13 (1.49 to 3.05) | 1.65 (1.15 to 2.36) | 1.60 (1.12 to 2.29) | 1.73 (1.21 to 2.48) | 1.26 (0.88 to 1.80) |
| Mix Black-Caribbean-White | 1.09 (0.75 to 1.58) | 1.67 (1.15 to 2.43) | 1.37 (0.94 to 2.00) | 1.58 (1.09 to 2.30) | 1.62 (1.11 to 2.36) | 1.32 (0.91 to 1.93) |
| Other/unspecific | 0.85 (0.69 to 1.05) | 1.12 (0.89 to 1.42) | 0.78 (0.63 to 0.96) | 0.71 (0.58 to 0.88) | 0.71 (0.58 to 0.88) | 0.62 (0.50 to 0.76) |
| Unstated | 0.98 (0.80 to 1.21) | 1.03 (0.83 to 1.26) | 0.94 (0.76 to 1.15) | 0.89 (0.73 to 1.10) | 0.89 (0.73 to 1.10) | 0.89 (0.72 to 1.09) |
| χ2 for ethnic variation | 26.7 | 42.2 | 78.7 | 111.3 | 113.5 | 163.3 |
| P value | 0.003 | <0.0005 | <0.0005 | <0.0005 | <0.0005 | <0.0005 |
| With cumulative adjustments in the following order to minimise the χ2 for ethnic variation at each stage: | ||||||
| Cumulative models | Parent marital/ registration status | +Mother COB | +Deprivation | +Sex | +Gestation | +Mother age |
| White British | 1 | 1 | 1 | 1 | 1 | 1 |
| White Non-British | 0.63 (0.49 to 0.81) | 0.91 (0.69 to 1.21) | 0.90 (0.68 to 1.20) | 0.90 (0.68 to 1.20) | 0.90 (0.68 to 1.20) | 0.92 (0.69 to 1.23) |
| Pakistani | 0.97 (0.68 to 1.38) | 1.24 (0.86 to 1.78) | 0.94 (0.65 to 1.36) | 0.94 (0.65 to 1.36) | 0.92 (0.64 to 1.33) | 0.87 (0.60 to 1.26) |
| Indian | 0.78 (0.49 to 1.23) | 1.02 (0.64 to 1.63) | 0.91 (0.57 to 1.46) | 0.91 (0.57 to 1.46) | 0.88 (0.55 to 1.42) | 0.87 (0.54 to 1.39) |
| Bangladeshi | 0.83 (0.44 to 1.55) | 1.15 (0.61 to 2.17) | 0.87 (0.46 to 1.64) | 0.87 (0.46 to 1.65) | 0.85 (0.45 to 1.61) | 0.79 (0.42 to 1.50) |
| Black African | 0.64 (0.46 to 0.89) | 1.02 (0.70 to 1.48) | 0.90 (0.62 to 1.30) | 0.90 (0.62 to 1.31) | 0.88 (0.61 to 1.28) | 0.96 (0.66 to 1.40) |
| Mixed Black-African-White | 1.36 (0.84 to 2.19) | 1.59 (0.98 to 2.57) | 1.52 (0.94 to 2.47) | 1.52 (0.94 to 2.47) | 1.54 (0.95 to 2.50) | 1.59 (0.98 to 2.57) |
| Black Caribbean | 1.14 (0.79 to 1.63) | 1.31 (0.91 to 1.88) | 1.17 (0.82 to 1.69) | 1.18 (0.82 to 1.69) | 1.13 (0.79 to 1.63) | 1.22 (0.85 to 1.75) |
| Mix Black-Caribbean-White | 1.09 (0.75 to 1.58) | 1.11 (0.76 to 1.62) | 1.05 (0.72 to 1.53) | 1.05 (0.72 to 1.53) | 1.05 (0.72 to 1.54) | 1.06 (0.73 to 1.55) |
| Other/unspecific | 0.85 (0.69 to 1.05) | 1.09 (0.87 to 1.37) | 1.02 (0.81 to 1.28) | 1.02 (0.81 to 1.28) | 1.00 (0.80 to 1.26) | 1.02 (0.81 to 1.28) |
| Unstated | 0.98 (0.80 to 1.21) | 1.06 (0.86 to 1.30) | 1.07 (0.87 to 1.31) | 1.07 (0.87 to 1.31) | 1.06 (0.86 to 1.30) | 1.06 (0.86 to 1.31) |
| χ2 for ethnic variation | 26.7 | 7.8 | 5.1 | 5.1 | 5.1 | 6.4 |
| P value | 0.003 | 0.6 | 0.9 | 0.9 | 0.9 | 0.8 |
All models are also adjusted for birth year. ‘COB’, country of birth (non-UK/UK). ‘χ2 for ethnic variation’, likelihood ratio test χ2 (10 df). ORs shown in bold have CIs that do not include 1.